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Supersonic wing-body wave drag co-ordinated optimisation based on FCE methodology

Published online by Cambridge University Press:  27 January 2016

X. Guan
X. Guan*
Affiliation:
Institute of System Engineering, CAEP Mianyang, China
*
[email protected]
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Abstract

Wave drag reduction is important for the aerodynamic performance optimisation of supersonic cruise aircrafts, such as the supersonic civil transport and the supersonic cruise missile. In this paper a method of the supersonic wing-body wave drag optimisation, the wave drag co-optimisation based on far-field composite elements (CoFCE), is proposed based on class-shape-transformation (CST) parameterisation. Wave drag optimisation cases of a supersonic civil transport wing-body are presented, including the optimisation results and computation cost analyses. It is suggested that the supersonic wing-body wave drag can be significantly reduced by the proposed method with relatively small numbers of design parameter. In the optimisation case presented in this paper a 45% wave drag reduction is achieved. The wave drag optimised configuration also achieved significant lift to drag ratio improvements in small angles-of-attack supersonic cruise flight conditions.

Type
Research Article
Information
The Aeronautical Journal , Volume 118 , Issue 1209 , November 2014 , pp. 1359 - 1372
Copyright
Copyright © Royal Aeronautical Society 2014 

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